.course-signup-modal[hidden]{display:none}
.course-signup-modal{position:fixed;inset:0;z-index:300;display:grid;place-items:center;padding:18px;background:rgba(4,46,78,.4);backdrop-filter:blur(12px)}
.course-signup-card{position:relative;width:min(650px,100%);max-height:calc(100vh - 35px);overflow:auto;padding:32px;border-radius:28px;background:var(--paper);box-shadow:0 25px 80px rgba(4,46,78,.22)}
.course-signup-card h2{margin:0 42px 10px 0;color:var(--water-dark);font:700 clamp(32px,5vw,52px)/.95 Georgia,serif;letter-spacing:-.045em}
.course-signup-card>p{color:var(--muted);line-height:1.5;font-weight:600}
.course-signup-close{position:absolute;right:14px;top:14px;width:38px;height:38px;border:0;border-radius:50%;background:var(--water-light);color:var(--water-dark);font-size:24px;cursor:pointer}
.course-signup-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:13px}
.course-signup-field{display:grid;gap:6px;min-width:0}
.course-signup-field.full{grid-column:1/-1}
.course-signup-field[hidden]{display:none}
.course-signup-field label{color:var(--water-dark);font-size:12px;font-weight:900}
.course-signup-field input,.course-signup-field select,.course-signup-field textarea{width:100%;min-width:0;padding:12px;border:2px solid var(--line);border-radius:13px;background:#fff;color:var(--ink);font:inherit;outline:none}
.course-signup-field textarea{min-height:90px;resize:vertical}
.course-signup-field input:focus,.course-signup-field select:focus,.course-signup-field textarea:focus{border-color:var(--water);box-shadow:0 0 0 4px rgba(40,122,159,.16)}
.course-signup-check{display:flex;gap:8px;margin:15px 0;color:var(--muted);font-size:12px;line-height:1.4;font-weight:600}
.course-signup-check input{accent-color:var(--water);flex:0 0 auto}
.course-signup-actions{display:flex;gap:9px;flex-wrap:wrap}
.course-signup-spam{margin:14px 0 0;padding:10px 12px;border-left:4px solid var(--coral);border-radius:10px;background:#fff4cf;color:var(--water-dark);font-size:12px;font-weight:800;line-height:1.45}
.course-signup-spam strong{color:var(--coral)}
.course-signup-field.has-error input,.course-signup-field.has-error select,.course-signup-field.has-error textarea{border-color:var(--coral);box-shadow:0 0 0 4px rgba(231,135,114,.17)}
.course-signup-check.has-error{padding:9px 11px;border-radius:12px;background:#fff0ec;color:var(--water-dark)}
.validation-message{grid-column:1/-1;margin:0;padding:8px 11px;border-left:4px solid var(--coral);border-radius:8px;background:#fff0ec;color:#a23e2d;font-size:12px;font-weight:900;line-height:1.4}
@media(max-width:620px){
  .course-signup-modal{align-items:end;padding:8px}
  .course-signup-card{max-height:calc(100dvh - 16px);padding:24px 18px 22px;border-radius:22px}
  .course-signup-card h2{font-size:38px}
  .course-signup-close{right:10px;top:10px}
  .course-signup-grid{grid-template-columns:1fr}
  .course-signup-field.full{grid-column:auto}
  .course-signup-check input{width:18px;height:18px;margin-top:1px}
}

.course-signup-field label,.course-signup-check{font-size:14px}
.course-signup-spam{font-size:13px}